The theoretical foundation for EE is electromagnetism. The theory of classical electromagnetism is based on Maxwell’s equations (see below), which provide a unified description of the behavior of electric and magnetic fields as well as their interactions with matter.

In practice however, circuit designers normally use simplified equations of electricity and magnetism and theorems that use circuit theory terms, such as Ohm’s law modified for AC circuits, voltage and current Kirchoff’s laws, and power relationships.

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Basic Electrical Formulas

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  1. javed Sutar
    Jun 25, 2014

    Why efficiency is considered while calculating current from HP? Efficiency is not considered when KW used.

  2. vasanth
    Feb 15, 2014

    its too helpful to me. thanks for your job.

  3. r sarwa
    Oct 20, 2012

    pls, post a guide for electrical unit and their conversion

    • Edvard
      Oct 22, 2012

      There must be conversion included in some of the already available guides, but I’ll try to get something!

  4. reman130488
    Dec 27, 2011

    the document is corrupt. plz check document

  5. samuel
    May 30, 2011

    This will be of a tremendous help to me

    • Edvard
      May 30, 2011

      Glad you like it! If you have any suggestion regarding electrical formulas, you can post it here.


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